Open Call for Papers: 29th International Conference on Intuitionistic Fuzzy Sets • 6–7 November 2026 • Sofia, Bulgaria / Online
NEW EXTENDED deadline for submissions: 15 AUGUST 2026.

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13:26, 16 August 2024 NIFS-05-2-25-32.pdf (file) 6 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = On intuitionistic fuzzy routing models | author = Dimiter Lakov, Georgi Kirov3 | source = "Notes on Intuitionistic Fuzzy Sets", Volume 5, Number 2, Pages 25-32 | date = 2005 | license = | other-version = }} Category:PDF files 1
11:52, 16 August 2024 NIFS-05-1-14-18.pdf (file) 3.23 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Issue:Intuitionistic fuzzy sets and weights | author = Du Chunjuan, Yuan Xue-hai | source = "Notes on Intuitionistic Fuzzy Sets", Volume 5, Number 1, Pages 14-18 | date = 2005 | license = | other-version = }} Category:PDF files 1
11:51, 16 August 2024 NIFS-05-1-09-13.pdf (file) 3 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Issue:Four intuitionistic fuzzy categories represented by functor categories | author = Zhang Cheng, Yuan Xue-hai | source = "Notes on Intuitionistic Fuzzy Sets", Volume 5, Number 1, Pages 9-13 | date = 2005 | license = | other-version = }} Category:PDF files 1
11:50, 16 August 2024 NIFS-05-1-19-24.pdf (file) 5.16 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Extending Bellman and Zadeh's approach to decision making via intuitionistic fuzzy sets | author = Eulalia Szmidt, Janusz Kacprzyk | source = "Notes on Intuitionistic Fuzzy Sets", Volume 5, Number 1, Pages 19-24 | date = 2005 | license = | other-version = }} Category:PDF files 1
11:45, 16 August 2024 NIFS-05-1-01-08.pdf (file) 4.93 MB Vassia Atanassova (talk | contribs) {{upload | description = Intuitionistic fuzzy interpretation of interval data | author = Krassimir Atanassov, Vladik Kreinovich | source = "Notes on Intuitionistic Fuzzy Sets", Volume 5, Number 1, Pages 1-8 | date = 2005 | license = | other-version = }} Category:PDF files 1
11:26, 16 August 2024 NIFS-11-4-158-161.pdf (file) 337 KB Vassia Atanassova (talk | contribs) {{upload | description = Neural network for defining intuitionistic fuzzy sets in e-learning | author = Sotir Sotirov, Ludmil Dakovski, G. Nenov | source = Notes on Intuitionistic Fuzzy Sets, Volume 11, Number 4, Pages 158-161 | date = 2005 | license = | other-version = }} Category:PDF files 1
15:05, 14 August 2024 NIFS-04-3.rar (file) 20.49 MB Vassia Atanassova (talk | contribs) {{upload | description = Contents of Notes on Intuitionistic Fuzzy Sets, Volume 4, Number 3: RAR archive | author = - | source = Notes on Intuitionistic Fuzzy Sets/04/3 | date = 1998 | license = | other-version = }} Category:RAR files 1
15:02, 14 August 2024 NIFS-04-3-57-64.pdf (file) 5.02 MB Vassia Atanassova (talk | contribs) {{upload | description = Natural requirements for natural roundings lead to a hardware-independent characterization of standard rounding procedures | author = T. E. Kaminsky, Vladik Kreinovich | source = Notes on Intuitionistic Fuzzy Sets, Volume 4, Number 3, Pages 57-64 | date = 1998 | license = | othe... 1
15:02, 14 August 2024 NIFS-04-3-79-84.pdf (file) 3.06 MB Vassia Atanassova (talk | contribs) {{upload | description = Generalized net model of health unit activities (an intuitionistic fuzzy approach) | author = Anthony Shannon, Dimiter Iliev, Eulalia Szmidt, Hristo Aladjov, Humberto Bustince Sola, Janusz Kacprzyk, Joseph Sorsich, Krassimir Atanassov, Nikolai Nikolov, Peter Georgiev, Valentina Radeva | source = [[Notes on Intuitionistic Fuzzy Se... 1
15:01, 14 August 2024 NIFS-04-3-85-91.pdf (file) 4.53 MB Vassia Atanassova (talk | contribs) {{upload | description = An intuitionistic fuzzy generalized net for optimal scheduling of ore handling processes at a sintering plant | author = Idilia Batchkova, Peter Georgiev, Valentina Radeva | source = Notes on Intuitionistic Fuzzy Sets, Volume 4, Number 3, Pages 85-91 | date = 1998 | license = | other-vers... 1
15:00, 14 August 2024 NIFS-04-3-92-99.pdf (file) 4.57 MB Vassia Atanassova (talk | contribs) {{upload | description = A family of residuated implication functions based on parametrized T-norms | author = Thomas Whalen | source = Notes on Intuitionistic Fuzzy Sets, Volume 4, Number 3, Pages 92-99 | date = 1998 | license = | other-version = }} Category:PDF files 1
14:59, 14 August 2024 NIFS-04-3-74-78.pdf (file) 2.24 MB Vassia Atanassova (talk | contribs) {{upload | description = Construction of investment expert system on the basis of intuitionistic fuzzy logic | author = Peter V. Vassilev | source = Notes on Intuitionistic Fuzzy Sets, Volume 4, Number 3, Pages 74-78 | date = 1998 | license = | other-version = }} Category:PDF files 1
14:57, 14 August 2024 NIFS-04-3-65-73.pdf (file) 6.06 MB Vassia Atanassova (talk | contribs) {{upload | description = Reengineering frameworks: Issues for fuzzy modeling | author = Cecilia Temponi | source = Notes on Intuitionistic Fuzzy Sets, Volume 4, Number 3, Pages 65-73 | date = 1998 | license = | other-version = }} Category:PDF files 1
11:52, 14 August 2024 NIFS-01-1.rar (file) 3.22 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = RAR archive of Notes on Intuitionistic Fuzzy Sets/01/1 | author = - | source = - | date = 1995 | license = | other-version = }} Category:RAR files 1
11:48, 14 August 2024 NIFS-07-4.rar (file) 16.24 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = RAR archive of Notes on Intuitionistic Fuzzy Sets/07/4 | author = - | source = - | date = 2001 | license = | other-version = }} Category:RAR files 1
11:44, 14 August 2024 NIFS-07-2.rar (file) 10.95 MB Vassia Atanassova (talk | contribs) {{upload | description = RAR archive of Notes on Intuitionistic Fuzzy Sets/07/2 | author = - | source = - | date = 2001 | license = | other-version = }} Category:RAR files 1
15:44, 13 August 2024 NIFS-07-2-37-43.pdf (file) 3.91 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Some new operations on intuitionistic fuzzy sets | author = Supriya Kumar De, Ranjit Biswas | source = Notes on Intuitionistic Fuzzy Sets, Volume 7, Number 2, Pages 37-43 | date = 2001 | license = All rights reserved on the behalf of the authors. | other-version = }} Category:PDF files 1
14:58, 13 August 2024 NIFS-07-2-63-64.pdf (file) 1.36 MB Vassia Atanassova (talk | contribs) {{upload | description = A variant of Craig's interpolation theorem for intuitionistic fuzzy formulae. Part 1 | author = Krassimir Atanassov | source = Notes on Intuitionistic Fuzzy Sets, Volume 7, Number 2, Pages 63-64 | date = 2001 | license = All rights reserved on the behalf of the authors. | other-version = }} Category:PDF files 1
14:57, 13 August 2024 NIFS-07-2-44-54.pdf (file) 8.21 MB Vassia Atanassova (talk | contribs) {{upload | description = Triangular norm-based intuitionistic fuzzy propositional calculus | author = Krassimir Atanassov, Adrian Ban | source = Notes on Intuitionistic Fuzzy Sets, Volume 7, Number 2, Pages 44-54 | date = 2001 | license = All rights reserved on the behalf of the authors. | other-version = }} Category:PDF files 1
14:56, 13 August 2024 NIFS-07-4-77-83.pdf (file) 6.14 MB Vassia Atanassova (talk | contribs) {{upload | description = Intuitionistic fuzzy languages in syntactic pattern recognition | author = Ketty Peeva | source = Notes on Intuitionistic Fuzzy Sets, Volume 7, Number 4, Pages 77-83 | date = 2001 | license = All rights reserved on the behalf of the authors. | other-version = }} Category:PDF files 1
14:55, 13 August 2024 NIFS-07-4-49-57.pdf (file) 11.34 MB Vassia Atanassova (talk | contribs) {{upload | description = Conflicting situations in flexible systems | author = Panagiotis Chountas, Ilias Petrounias, Krassimir Atanassov | source = Notes on Intuitionistic Fuzzy Sets, Volume 7, Number 4, Pages 49-57 | date = 2001 | license = All rights reserved on the behalf of the authors. | other-version = }} Category:PDF files 1
12:43, 13 August 2024 NIFS-08-3-130-134.pdf (file) 3.91 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Issue:An intuitionistic fuzzy Petri net at the supervisory level of a discrete event dynamic system | author = Valeri Gochev | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 3, pages 130-134 | date = 2002 | license = | other-version = }} Category:PDF files 1
12:42, 13 August 2024 NIFS-08-3-119-129.pdf (file) 10.82 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Issue:Common-sense deduction with fuzzy and intuitionistic fuzzy logic | author = Nikolai Nikolov | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 3, pages 119-129 | date = 2002 | license = | other-version = }} Category:PDF files 1
12:41, 13 August 2024 NIFS-08-3-113-118.pdf (file) 4.4 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = [[Issue:An intuitionistic fuzzy generalized net application in a negatronic generator |]] | author = Zlatogor Minchev, Hugo Oscar | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 3, pages 113-118 | date = 2002 | license = | other-version = }} Category:PDF files 1
12:40, 13 August 2024 NIFS-08-3-105-112.pdf (file) 8.48 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Issue:Reoptimization of crude oil distillation plant using intuitionistic fuzzy generalized nets | author = Idilia Batchkova, Joanna Alexieva | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 3, pages 105-112 | date = 2002 | license = | other-version = }} Category:PDF files 1
12:40, 13 August 2024 NIFS-08-3-101-104.pdf (file) 3.02 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Issue:Intuitionistic fuzzy generalized net model for diabetes mellitus | author = Anthony Shannon, Joseph Sorsich, Stefan Hadjitodorov, Georgi Gluhchev | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 3, pages 101-104 | date = 2002 | license = | other-version = }} Category:PDF files 1
12:37, 13 August 2024 NIFS-08-3-066-074.pdf (file) 6.81 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Intuitionistic fuzzy interpretations of multi-measurement tool multi-criteria decision making | author = Krassimir Atanassov, Gabriella Pasi, Ronald Yager | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 3, pages 66-74 | date = 2002 | license = | other-version = }} [[... 1
17:55, 12 August 2024 NIFS-08-3-054-056.pdf (file) 2.31 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = A note on a new category of intuitionistic fuzzy sets | author = Basil Papadopoulos, Apostolos Syropoulos, Krassimir Atanassov | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 3, pages 54-56 | date = 2002 | license = | other-version = }} Category:PDF files 1
17:38, 12 August 2024 NIFS-08-3-043-053.pdf (file) 6.87 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Numerical solution of fuzzy differential equation by Runge-Kutta method and the intuitionistic treatment | author = Said Abbasbandy, T. Allah Viranloo | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 3, pages 43-54 | date = 2002 | license = | other-version = }}... 1
16:04, 12 August 2024 NIFS-08-3-031-033.pdf (file) 1.79 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = An example for a difference between ordinary (crisp), fuzzy and intuitionistic fuzzy sets | author = Lyudmila Todorova, Krassimir Atanassov | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 3, pages 31-33 | date = 2002 | license = | other-version = }} Category:PDF files 1
16:03, 12 August 2024 NIFS-08-3-034-036.pdf (file) 1.62 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = On distance between intuitionistic fuzzy sets | author = Lalla Saadia Chadli, Said Melliani | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 3, pages 34-36 | date = 2002 | license = | other-version = }} Category:PDF files 1
15:58, 12 August 2024 NIFS-08-3-037-042.pdf (file) 4.5 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Direct and inverse problem resolution in intuitionistic fuzzy relational calculus | author = Ketty Peeva | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 3, pages 37-42 | date = 2002 | license = | other-version = }} Category:PDF files 1
15:48, 12 August 2024 NIFS-08-3-026-030.pdf (file) 3.91 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Sequences of intuitionistic fuzzy numbers | author = Mariana Nikolova | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 3, pages 26-30 | date = 2002 | license = | other-version = }} Category:PDF files 1
15:26, 12 August 2024 NIFS-08-3-001-010.pdf (file) 8.73 MB Vassia Atanassova (talk | contribs) {{upload | description = On the representation of intuitionistic fuzzy t-norms and t-conorms | author = Glad Deschrijver, Chris Cornelis, Etienne Kerre | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 3, pages 1-10 | date = 2002 | license = | other-version = }} Category:PDF files 1
14:11, 12 August 2024 NIFS-08-2-63-72.pdf (file) 6.88 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Partial and multiple correlation coefficients on interval-valued intuitionistic fuzzy sets | author = Madhumangal Pal, Nishi Kanta Jana | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 2, pages 63-72 | date = 2002 | license = All rights reserved on the behalf of the authors. |... 1
14:10, 12 August 2024 NIFS-08-2-51-62.pdf (file) 7.23 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Intuitionistic fuzzy matrices | author = Madhumangal Pal, Susanta Khan, Amiya Shaymal | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 2, pages 51-62 | date = 2002 | license = All rights reserved on the behalf of the authors. | other-version = }} Category:PDF files 1
13:59, 12 August 2024 NIFS-08-2-42-50.pdf (file) 5.7 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Construction of decomposable measures on intuitionistic fuzzy sets | author = Adrian Ban | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 2, pages 42-50 | date = 2002 | license = All rights reserved on the behalf of the authors. | other-version = }} Category:PDF files 1
12:29, 12 August 2024 NIFS-08-1-28-33.pdf (file) 3.55 MB Vassia Atanassova (talk | contribs) {{upload | description = Cut sets of intuitionistic fuzzy sets | author = Li Min | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 1, pages 28-33 | date = 2002 | license = All rights reserved on the behalf of the authors. | other-version = }} Category:PDF files 1
12:28, 12 August 2024 NIFS-08-1-01-18.pdf (file) 9.54 MB Vassia Atanassova (talk | contribs) {{upload | description = Intuitionistic fuzzy rough sets | author = S. P. Jena, S. K. Ghosh, B. K. Tripathy | source = Notes on Intuitionistic Fuzzy Sets, Volume 8 (2002), Number 1, pages 1-18 | date = 2002 | license = All rights reserved on the behalf of the authors. | other-version = }} Category:PDF files 1
10:43, 9 August 2024 NIFS-11-4-139-145.pdf (file) 4.64 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Object-oriented principles and associations in multidimensional models. Intuitionistic fuzzy estimations | author = Ivanka Valova | source = "Notes on Intuitionistic Fuzzy Sets", Volume 11 (2005), Number 4, pages 139-145 | date = 2005 | license = | other-version = }} [[Category:PDF fi... 1
10:42, 9 August 2024 NIFS-11-4-123-129.pdf (file) 4.97 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Intuitionistic fuzzy generalized nets in modeling web usage patterns identification | author = Ilias Petrounias, Andy Tseng, Panagiotis Chountas, Boyan Kolev, Elia El-Darzi, Vassilis Kodogiannis | source = "Notes on Intuitionistic Fuzzy Sets", Volume 11 (2005), Number 4, pages 123-129 | dat... 1
10:42, 9 August 2024 NIFS-11-4-146-150.pdf (file) 3.16 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Generalized net model of decision making processes in the management's systems with use of intuitionistic fuzzy sets |author = Rossen Iliev | source = "Notes on Intuitionistic Fuzzy Sets", Volume 11 (2005), Number 4, pages 146-150 | date = 2005 | license = | other-version =... 1
10:41, 9 August 2024 NIFS-11-4-130-138.pdf (file) 5.55 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = A new similarity measure for intuitionistic fuzzy sets and its use in supporting a medical diagnosis |author = Eulalia Szmidt, Janusz Kacprzyk, Mikhail Matveev | source = "Notes on Intuitionistic Fuzzy Sets", Volume 11 (2005), Number 4, pages 130-138 | date = 2005 | license = | oth... 1
10:40, 9 August 2024 NIFS-11-4-151-157.pdf (file) 3.65 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Modelling of temperature control system in fermentation processes using generalized nets and intuitionistic fuzzy logics |author = Olympia Roeva, Tania Pencheva, Isabel Bentes, Maria Manuel Nascimento | source = [[Notes on Intuitionistic Fuzzy Sets/11/4|"Notes on Intuitionistic Fuzzy Sets", Volume 11 (2005... 1
10:38, 9 August 2024 NIFS-11-4-162-169.pdf (file) 4.58 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Linear dependence and linear independence in intuitionistic fuzzy sets | author = Ketty Peeva, Zlatko Zahariev | source = "Notes on Intuitionistic Fuzzy Sets", Volume 11 (2005), Number 4, pages 162-169 | date = 2005 | license = | other-version = }} Category:PDF files 1
10:39, 15 July 2024 NIFS-30-2-180-189.pdf (file) 683 KB Vassia Atanassova (talk | contribs) cor. 2
16:16, 2 July 2024 NIFS-28-2-172-192.pdf (file) 592 KB Vassia Atanassova (talk | contribs)   4
09:30, 2 July 2024 NIFS-29-4-365-370.pdf (file) 421 KB Vassia Atanassova (talk | contribs) corrected initial in reference [1] 2
20:34, 1 July 2024 NIFS-30-2-113-120.pdf (file) 1.14 MB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = On OWA, Machine Learning and Big Data: The case for IFS over universes | author = Panagiotis Chountas, Mustafa Hajmohammed and Ismael Rhemat | source = Notes on Intuitionistic Fuzzy Sets, Volume 30 (2024), Number 2, pages 113-120 | date = 2024 | license = | other-version = }} Category:PDF files 1
20:23, 1 July 2024 NIFS-30-2-131-141.pdf (file) 665 KB Vassia Atanassova (talk | contribs) == Summary == {{upload | description = Ranking of factors affecting pricing in construction projects by intuitionistic fuzzy analytic hierarchy process with ordered pairs | author = Selçuk Çebi, Cengiz Kahraman, Sezi Çevik Onar and Başar Öztayşi | source = [[Notes on Intuitionistic Fuzzy Sets/30/2|Notes on Intuitionistic Fuzzy Sets,... 1
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